/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
}

.nav-menu {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 30px;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-link:hover {
    color: #007bff;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 轮播图样式 */
.carousel-section {
    position: relative;
    overflow: hidden;
}

.carousel-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    height: 600px;
}

.carousel {
    display: flex;
    height: 100%;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.carousel-slide.active {
    opacity: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slide-content {
    position: absolute;
    bottom: 50px;
    left: 50px;
    color: white;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
    max-width: 500px;
}

.slide-content h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.cta-button {
    background-color: #007bff;
    color: white;
    border: none;
    padding: 12px 25px;
    font-size: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #0056b3;
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    font-size: 2rem;
    padding: 10px 15px;
    cursor: pointer;
    z-index: 100;
}

.carousel-control.prev {
    left: 10px;
}

.carousel-control.next {
    right: 10px;
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 5px;
    cursor: pointer;
}

.indicator.active {
    background-color: white;
}

/* 内容区域样式 */
.content {
    max-width: 1200px;
    margin: 50px auto;
    padding: 0 20px;
}

.intro {
    text-align: center;
    margin-bottom: 50px;
}

.intro h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.intro p {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
    color: #666;
}

.features h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.feature-card p {
    color: #666;
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 50px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-item {
        margin: 15px 0;
    }

    .hamburger {
        display: flex;
    }

    .carousel-container {
        height: 400px;
    }

    .slide-content {
        left: 20px;
        bottom: 30px;
    }

    .slide-content h2 {
        font-size: 1.8rem;
    }

    .slide-content p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .carousel-container {
        height: 300px;
    }

    .slide-content {
        left: 15px;
        bottom: 20px;
    }

    .slide-content h2 {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
}